Abstract: A linear actuator system with a controller, said controller comprising a controller and programmable means for controlling the operation of an electrical motor. The electrical linear actuator system comprises a user control unit (1), an electrical cord with a plug for connecting the user control unit (1) and the controller, where the controller and/or the user control unit comprises a socket (1a) for receiving the plug (2). The plug (2) comprises a locking ring (5), which is rotatable relative to the plug (2), and the socket (1 a) comprises an opening (16) for receiving the plug (2) including the locking ring (5) in the opening (16) of the socket (1 a). The socket (1 a) further comprises an aperture (4) through which a part of the locking ring (5) is accessible when the plug (2) including the locking ring (5) is inserted into the opening (16) of the socket (1a).

Abstract: The present invention introduces a heat exchanger including a stack of heat transfer plates positioned between two end plates in which recesses formed in edge regions are adapted to accommodate bolts reaching from a first to a second of said two end plates, said at least one of said recesses formed with locking features adapted to engage with a locking device including an opening, where the locking device is to be positioned on the respective end plate with the opening aligned with the recess in such a manner that a bolt positioned in the recess also can project through said opening. This prevents the bold from falling out of the recesses.

Abstract: A linear actuator system with a controller, said controller comprising a controller and programmable means for controlling the operation of an electrical motor. The electrical linear actuator system comprises a user control unit (1), an electrical cord with a plug for connecting the user control unit (1) and the controller, where the controller and/or the user control unit comprises a socket (1a) for receiving the plug (2). The plug (2) comprises a locking ring (5), which is rotatable relative to the plug (2), and the socket (1 a) comprises an opening (16) for receiving the plug (2) including the locking ring (5) in the opening (16) of the socket (1 a). The socket (1 a) further comprises an aperture (4) through which a part of the locking ring (5) is accessible when the plug (2) including the locking ring (5) is inserted into the opening (16) of the socket (1a).